We noticed there were several roofs in the community that were being replaced by metal roofing. Can anyone tell us what the advantage is to a metal roof, besides longevity of course.
We were confused by why someone would replace a one year old shingle roof.

a few other things - in addition to reflecting the sun for better energy efficiency and reduced heat island effect, some metal roofs can accommodate solar panels without penetrations/cutting into the roof - the panels can be attached to the metal seams. for rainwater harvesting, the water running off a metal roof would be cleaner.

and of course as was already pointed out, the metal roof should last a lot longer, although I understand some hail damage is still possible if the hail is big enough.